Spring motor



Jan. 9, 1923,

M. G. PAINJ SPRING MOTOR. ORIGINAL FILED DEC. t 0, 1918.

INVENTOR I I M 6. PM?

ATTRNEY It ii lt aten lred ti it Efi ermine Moron.

1 application filed December 10, 1913, serial No. 266,062. RenewedUctoher Q5, 1922. serial No. 596,396.

' S! 0 (iii 4071 0022 it may concem:

Be itknown that l, Mania GJPAIN, a subject of the King of England,residing at Littleroclr. in the county of Thurston and State of lVashington, have invented certain new and useful. Improvements in rdiri'iiig Motors, of which the following is a specification.

This invention relates to spring actuated motors; and its object is toproduce a device of this character which may be manufactured. at amoderate cost and advantageously used for a number of purposes as, forexan1- ple, operating emery wheels, coffee mills, etc.

The invention is illustrated in the accompanying drawings, in whichFigure 1 is a longitudinal vertical section; Fig. 2 is transversesection. through 22 of i ig. 1; and Fig. 3 is a detail plan view.

lfn said drawings, the reference numeral 5 designates a shaft journaledin boxes 6 and 7. Loosely mounted on said shaft is a master gear 8having; peripheral spur teeth. fiiaid gear is provided with a chamber 9to accommodate a wheel. 10 which is also loosely mounted upon. the shaft5 and is provided with a chamber 11 to accommodate acoil springlQ. "Oneend of this spring is secured to a collar 13 which is secured, as byalrey 14, to the shaft, and its other end is secured to the rim of thewheel 1O.

15 represent rollers positioned in notches 1.6 in the outer periphery ofsaid wheel and are arranged, to engage the inner circumferential surface8 of gear 0 and the relatively inclined surfaces 16 of the respectivenotches for coupling the gear to the wheel when the former is to berotated by the wheel in the direction indicated by arrow 0' in Fig". 2,and coupling the gear to said wheel when winding the spring 12.

fiaid spring is wound by means of a crank handle 1.? having a boss 1'?formed with a polygonal aperture through which extends a correspondin lyshaped portion 5 of said shaft The perimeter of said boss is alsopolygonal and desirably tapering, shown, to lit into a correspondinrecess 6 provided in the adjacent end of the shaft bearing boa, '6.

When the crank-handle boss is within the recess 6 as showi'i by fulllines in Fig. 1, said boss serves to secure the shaft against rotation;but when the crank handle is with drawn from said recess, as indicatedby brolren lines li the shaft ay rotad by the crank handle for windingthe motor spring 12.,

Secured to or formed integral with the master gear wheel 8 is a dishbrake-element l8, and 19 represents a diskbrake-element complementarythereto which is slidahlc axially upon the shaft and in which the latteris free to rotate.

20 represents a sleeve mounted upon a hub formed on the aforesaid ournalhos: 7.

through holes 19 provided in brake element 19. Said holes arecounterbored to afford annular shoulders 19 which are normally heldagainst the heads of said prongs by a spiral spring 26 interposedbetween the brake element 19 and the hub 7 The length of the prong heads25 is less than the depths of the respective counterbores so that whenthe lever 23 is actuated to shift the sleeve 20 in the direction ofarrow 6, Figs. 1 and 3, the spring 26 wlll serve to cause the brakeelement 19 to be broughtinto frictional engagement with the brakeelement 18.

A further movement of the sleeve will effeet the advancement of theprongs to engage the same inv holes 18 provided in brake element 18,thereby positively locking thetwo elements together for securing themaster gear wheel when the motor is to remain idle and when the shaft isbeing turned by the handle 17 for winding the power spring 12.

To protect the spring from dirt, a cover 27 is desirably used to closethe pen end of the gear chamber 28 represents a spur pinion mounted on ashaft 29 to be driven from the gear 8 for operating a machine.

in operation, the spring 1.2 affords power which acts through the wheel10 and coupling; rollers 1 to rotate the master gear 8. By advancing thebrake element 19 into frictional engagement with the element 1%, thespeed of the gear 8may be controlled and stopped, if desired, bysuitably manipulating the lever 23. a

The eleent 19 is set forward by the spring 26 when the prongs 25 aremoved with the sleeve 20 in the direction of arrow 7) (Fi 1). ln suchaction the spring; 26 causes the element 19 to ol ow the prone-heads 25uu til the element 19 encounters the other element l8, whereupon thefrieional engage ment of the brake occurs.

A 'lurther advancing off he sleeve 20 causes the prong-heads to engagein the holes 18 to positively secure the gear 8 from rotating.

l. A soiling motor comprisin a shaft, journal boxes therefor, a wheelmounted on said shaft, a spiral spring connecting said wheel to tl eshaft a second Wheel, means to couple said wheels for movement in onerotary d'reetion, means to releasahly secure said second-named wheel.from rotating, and means en aged with said shaft and selectively engeahle with one of said boxes for use in securing the shaft fromrotation when the machine is operable and. disengageahle from the saidbox for use in turning the shaft to effect inding of he spring.

2. In a spring motor, a Wheel, a chambered swond wheel therein. a shaftrarnvins: sziiil whe ls. a spring contained in the (-hamlwr of saidsecond wheel and having its ends respei'tirel v connected thereto and tothe shalt ineens to couple the wheels tor rotatin; in one direction, andbrake devices arranged to he actuated to sueeessively engage thelirstnamed wheel trietionallv and positively.

:1. ln :1 spring: motor. a shatt. hearing hoxes therefor, two wheelsmounted for independent rotary motion on the shaft. derives seri ing toeouplo said wheels to turn in unison n one rotary direi-tioiL a springoperat rel eonneeting one of said wheel to the sh lt. hralife derivesfor controlling the other 1 suid wheels. and means adapted to heinterrlumpgeal'ilr employed for rotating; the theft to wind said springor to secure the shaft; aeninst rotating.

)lympia, \Vaslr, this 30th day iugg'ned at oi? Norei'nher, 1918.

MARIA (1. l.\l.\. \Vitnesses JOHN BUsTRAcK, MARY l3. PORTM'AN.

